The SWM ensures smooth, discrete auto focusing and the non rotating front element enables the use of lens mounted flash accessories like the SB-R1C1 Macro Lighting kit.

• SWM带来流畅，离散自动对焦和非旋转式前元素使镜片安装使用闪光灯配件一样了SB - R1C1宏照明套件。